TROUBLESHOOTING
SERVICE MANUAL NUMBER 26
Engine Cranks Over But Will Not Start Or Is Hard To Start
Important Information
1.
First, determine which engine system is causing the problem. To make an engine run,
basic components fuel, spark (ignition), and compression are required. If all three
components are present, the engine should run. If any one of the three are missing,
weak, or arriving at the wrong time the engine will not run.
2.
3.
Determine if there is fuel present by looking down the carburetor venturi while actuating
throttle. There should be a stream of fuel coming out of the accelerator pump nozzles
if the carburetor has fuel.
Check ignition system operation. Remove coil wire from tower on distributor cap. Hold
coil wire near ground and check for spark while cranking engine over. Repeat procedure
with spark plug wires. If there is spark at the spark plug wires, remove the spark plugs
and make sure they are correct type and heat range, and not fouled or burned.
4.
Run a compression check on engine to make sure the engine is mechanically sound.
b
(+)
(“C”)
GRY
B R E
PUR
a
d
e
c
PN
g
f
BRE
BRE
+
+
C
C
WHT
WHT
B
B
PNK
i
h
BRN
A
GRY
A
71572
a - Ignition Coil Connector
b - Pick-Up Coil
c - Distributor 3 Terminal Connector
d - Distributor HEI Module
e - Filter
f - Ignition Coil
g - To Distributor Cap
h - Primary
i - Secondary
Index
Page 1C-10
90-861329--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 5.0 out of 5.0 based on 6 product reviews. Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good
great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.
Great resource. Excellent information provided.
Need help to install automate choke
Need help to instal automate choke